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http://www.imagehosting.com/out.php/i412805_ramp.JPG

- The angle between the ramp and horizontal is 60 degrees.

- The hanging mass has a mass of 1.5 kg

- The mass on the ramp has a mass of 0.4857 kg

- When the system is moving, it has an acceleration of 4.915 m/s^2.

Determine the tension on the string when:

a) The system is not moving

b) The system is released and free to move

a) I believe that the tension force on the rope would be 14.7 N (1.5 kg * 9.8 m/s^2), as the hanging mass is pulling the rope whereas the stationary ramp mass acts as an anchor.

b)

[tex]\Sigma F = ma [/tex]

[tex]\Sigma F = F_(gravity) - F_(tension) [/tex]

[tex] F_g - F_t = ma [/tex]

[tex] 14.7 N - F_t = (1.5 kg)(4.915 m/s^2) [/tex]

[tex] F_t = 7.33 N [/tex]

I am not too sure about the second answer, as I'm not really certain whether the mass in the 'ma' expression should be the entire system mass, or whether I have actually done the entire thing correctly in the first place...

Thanks for any help!

- The angle between the ramp and horizontal is 60 degrees.

- The hanging mass has a mass of 1.5 kg

- The mass on the ramp has a mass of 0.4857 kg

- When the system is moving, it has an acceleration of 4.915 m/s^2.

Determine the tension on the string when:

a) The system is not moving

b) The system is released and free to move

a) I believe that the tension force on the rope would be 14.7 N (1.5 kg * 9.8 m/s^2), as the hanging mass is pulling the rope whereas the stationary ramp mass acts as an anchor.

b)

[tex]\Sigma F = ma [/tex]

[tex]\Sigma F = F_(gravity) - F_(tension) [/tex]

[tex] F_g - F_t = ma [/tex]

[tex] 14.7 N - F_t = (1.5 kg)(4.915 m/s^2) [/tex]

[tex] F_t = 7.33 N [/tex]

I am not too sure about the second answer, as I'm not really certain whether the mass in the 'ma' expression should be the entire system mass, or whether I have actually done the entire thing correctly in the first place...

Thanks for any help!

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